package com.zhupanlin.order;

import com.alibaba.cloud.nacos.NacosConfigManager;
import com.alibaba.nacos.api.config.ConfigService;
import com.alibaba.nacos.api.config.listener.Listener;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.context.annotation.Bean;

import java.util.concurrent.Executor;
import java.util.concurrent.Executors;

/**
 * 描述信息：
 *
 * @author zhupanlin
 * @version 1.0
 * @date 2025/1/23 13:51
 */
@EnableFeignClients(basePackages = "com.zhupanlin.order.feign") // 开启 Feign 远程调用功能
@EnableDiscoveryClient
@SpringBootApplication
public class OrderMainApplication {

    public static void main(String[] args) {
        SpringApplication.run(OrderMainApplication.class, args);
    }
    
    // 1.项目启动就监听配置文件变化
    // 2.发生变化后拿到变化值
    // 3.发送邮件
    
    @Bean
    public ApplicationRunner applicationRunner(NacosConfigManager nacosConfigManager) {
        return args -> {
            ConfigService configService = nacosConfigManager.getConfigService();
            configService.addListener("service-order.yml",
                    "DEFAULT_GROUP", new Listener() {
                        @Override
                        public Executor getExecutor() {
                            return Executors.newFixedThreadPool(4);
                        }

                        @Override
                        public void receiveConfigInfo(String configInfo) {
                            System.out.println("变化的配置信息: " + configInfo);
                            System.out.println("邮件通知...");
                        }
                    });
            System.out.println("=======");
        };
    }

}